Eckert number


Eckert number

[′ek·ərt ‚nəm·bər] (physics) A dimensionless group used in the study of compressible flow around a body, equal to the square of the fluid velocity far from the body divided by the product of the specific heat of the fluid at constant temperature and the difference between the temperatures of the fluid and the body. Symbolized NE . Also known as Dulong number.